Radiator: Finned aluminium panel placed in the frontal part, inside of the engine bay.
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Inside of it flows the hot refrigerant. Its purpose is to allow the air at room temperature between the fins to cool the refrigerant. It has 2 thick hoses, one in the opening (upper part) and another in the exit (lower part).
Keep running hot. Coolant reservoir would be BOILING if left running idle. Ended up having to get a replacement CPU for the damn thing from a junk yard. "They don't make new ones to replace. " This was the Kia dealership! So we found one, brought it to them, "Oh. Well we don't have to tools here anymore to replace them since we don't carry the parts for them. "
No kidding!!?!
No kidding!!?!